| Falls Church to Karlovo | 4,985.65 mi (8,023.63 km) |
| Falls Church to Karnobat | 5,073.87 mi (8,165.61 km) |
| Falls Church to Kavarna | 5,093.08 mi (8,196.52 km) |
| Falls Church to Kazanlak | 5,010.82 mi (8,064.14 km) |
| Falls Church to Knezha | 4,921.05 mi (7,919.67 km) |
| Falls Church to Kostinbrod | 4,913.60 mi (7,907.67 km) |
| Falls Church to Kozloduy | 4,895.37 mi (7,878.34 km) |
| Falls Church to Kyustendil | 4,913.23 mi (7,907.08 km) |
| Falls Church to Levski | 4,968.85 mi (7,996.59 km) |
| Falls Church to Lom | 4,873.62 mi (7,843.34 km) |
| Falls Church to Lovech | 4,961.68 mi (7,985.05 km) |
| Falls Church to Lukovit | 4,936.70 mi (7,944.86 km) |
| Falls Church to Lyaskovets | 5,003.39 mi (8,052.18 km) |
| Falls Church to Mezdra | 4,919.79 mi (7,917.63 km) |
| Falls Church to Momchilgrad | 5,056.91 mi (8,138.30 km) |
